Mechanical / Electrical Specifications - CanadianSolar CS3W-PB-AG Installation Manual

Protective clothing (non-slip gloves, clothes,
etc.) must be worn during installation to
prevent direct contact with 30 V
greater, and to protect hands from sharp
edges.
Prior to installation, remove all metallic
jewelry to prevent accidental exposure to
live circuits.
When installing modules in light rain,
morning dew, take appropriate measures
to prevent water ingress into the
connector.
Do not allow children or unauthorized
persons near the installation site or
module storage area.
 Use electrically insulated tools to reduce the risk of
electric shock.
 If the disconnects and over current protection devices
(OCPDs) cannot be opened or the inverter cannot be
powered down, cover the fronts of the modules in the
PV array with an opaque material to stop the
production of electricity when installing or working on
a module or wiring.
Do not install modules in strong wind.

Do not use or install broken modules.

Do not contact module surface if the front or rear glass

is broken. This may cause electric shock.
Do not attempt to repair any part of the module. The

PV module does not contain any serviceable parts.
Do not open the cover of the junction box at any time.

Do not disassemble a module or remove any module

part.
Do not artificially concentrate sunlight on a module.

Do not connect or disconnect modules when current
from the modules or an external source is present.
3.0 MECHANICAL / ELECTRICAL
SPECIFICATIONS
Module electrical ratings are measured under Standard
EN-Rev IM/GN-BM-EN/2.5C1Copyright © January, 2023. CSI Solar Co., Ltd.
Test Conditions (STC) of 1000 W/m
AM1.5 spectrum, and a cell temperature of 25°C. Detailed
or electrical and mechanical characteristics of Canadian
DC
Solar crystalline silicon PV modules can be found in
module datasheets on www.csisolar.com. Main electrical
characteristics at STC are also stated on each module
label. Please refer to the datasheet or the product
nameplate for the maximum system voltage.
Under certain conditions, a module may produce more
current or voltage than its Standard Test Conditions rated
power. As a result, the module short-circuit current under
STC should be multiplied by 1.25, and a correction factor
should be applied to the open-circuit voltage (see Table 1
below), when determining component ratings and
capacities.
Table 1: Low temperature correction factors for open-
circuit voltage
Lowest Expected
Ambient Temperature
(°C/°F)
24 to 20 / 76 to 68
19 to 15 / 67 to 59
14 to 10 / 58 to 50
9 to 5 / 49 to 41
4 to 0 / 40 to 32
-1 to -5 / 31 to 23
-6 to -10 / 22 to 14
-11 to -15 / 13 to 5
-16 to -20 / 4 to -4
-21 to -25 / -5 to -13
-26 to -30 / -14 to -22
-31 to -35 / -23 to -31
-36 to -40 / -32 to -40
Alternatively, a more accurate correction factor for the
open-circuit voltage can be calculated using the following
formula:
��
Voc
T (°C) is the lowest expected ambient temperature at the
system installation site.
α (%/°C) is the voltage temperature coefficient of the
Voc
selected module (refer to corresponding datasheet).
OCPD rating selection should be done per the following
2 irradiance, with an
Correction Factor
= �� − �� × (���� − ��)
������
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1.02
1.04
1.06
1.08
1.10
1.12
1.14
1.16
1.18
1.20
1.21
1.23
1.25